In Ohio State experiment, students use 3-D printers for free

This semester, Ohio State University bought two 3-D printers and spread a message across campus: For two months, students can make whatever they want on the printers for free.

It's partly an experiment for the people in charge of technology at Ohio State. They wanted to measure demand for 3-D printers among a wide pool of students and workers, not just the engineering, architecture and art students who use 3-D printers every day for class work.